package com.wisdomstar.system.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.wisdomstar.system.service.ISysDictTypeService;
import com.wisdomstar.common.constant.UserConstants;
import com.wisdomstar.common.core.domain.entity.SysDictData;
import com.wisdomstar.common.core.domain.entity.SysDictType;
import com.wisdomstar.common.exception.ServiceException;
import com.wisdomstar.common.utils.DictUtils;
import com.wisdomstar.common.utils.StringUtils;
import com.wisdomstar.system.mapper.SysDictDataMapper;
import com.wisdomstar.system.mapper.SysDictTypeMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import javax.annotation.PostConstruct;
import java.util.Comparator;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

/**
 * 字典 业务层处理
 * 
 * @author RinMi
 */
@Service
public class SysDictTypeServiceImpl extends ServiceImpl<SysDictTypeMapper, SysDictType> implements ISysDictTypeService
{
    private final SysDictTypeMapper dictTypeMapper;

    private final SysDictDataMapper dictDataMapper;
    @Autowired
    public SysDictTypeServiceImpl(SysDictTypeMapper dictTypeMapper, SysDictDataMapper dictDataMapper) {
        this.dictTypeMapper = dictTypeMapper;
        this.dictDataMapper = dictDataMapper;
    }

    /**
     * 项目启动时，初始化字典到缓存
     */
    @PostConstruct
    public void init()
    {
        loadingDictCache();
    }

    /**
     * 根据条件分页查询字典类型
     *
     * @param dictType 字典类型信息
     * @return 字典类型集合信息
     */
    @Override
    public List<SysDictType> selectDictTypeList(SysDictType dictType)
    {
        LambdaQueryWrapper<SysDictType> lambdaQueryWrapper = new LambdaQueryWrapper<>();
        lambdaQueryWrapper.like(StringUtils.isNotEmpty(dictType.getDictName()), SysDictType::getDictName, dictType.getDictName());
        lambdaQueryWrapper.eq(StringUtils.isNotEmpty(dictType.getStatus()), SysDictType::getStatus, dictType.getStatus());
        lambdaQueryWrapper.like(StringUtils.isNotEmpty(dictType.getDictType()), SysDictType::getDictType, dictType.getDictType());
        lambdaQueryWrapper.ge(StringUtils.isNotNull(dictType.getParams().get("beginTime")), SysDictType::getCreateTime, dictType.getParams().get("beginTime"));
        lambdaQueryWrapper.le(StringUtils.isNotNull(dictType.getParams().get("endTime")), SysDictType::getCreateTime, dictType.getParams().get("endTime"));
        return dictTypeMapper.selectList(lambdaQueryWrapper);
    }

    /**
     * 根据所有字典类型
     * 
     * @return 字典类型集合信息
     */
    @Override
    public List<SysDictType> selectDictTypeAll()
    {
        return dictTypeMapper.selectList(null);
    }

    /**
     * 根据字典类型查询字典数据
     * 
     * @param dictType 字典类型
     * @return 字典数据集合信息
     */
    @Override
    public List<SysDictData> selectDictDataByType(String dictType)
    {
        List<SysDictData> dictDatas = DictUtils.getDictCache(dictType);
        if (StringUtils.isNotEmpty(dictDatas))
        {
            return dictDatas;
        }

        LambdaQueryWrapper<SysDictData> lambdaQueryWrapper = new LambdaQueryWrapper<>();
        lambdaQueryWrapper.eq(SysDictData::getStatus, "0");
        lambdaQueryWrapper.eq(SysDictData::getDictType, dictType);
        lambdaQueryWrapper.orderByAsc(SysDictData::getDictSort);
        dictDatas = dictDataMapper.selectList(lambdaQueryWrapper);
        if (StringUtils.isNotEmpty(dictDatas))
        {
            DictUtils.setDictCache(dictType, dictDatas);
            return dictDatas;
        }
        return null;
    }

    /**
     * 根据字典类型ID查询信息
     * 
     * @param dictId 字典类型ID
     * @return 字典类型
     */
    @Override
    public SysDictType selectDictTypeById(Long dictId)
    {
        return dictTypeMapper.selectById(dictId);
    }

    /**
     * 根据字典类型查询信息
     * 
     * @param dictType 字典类型
     * @return 字典类型
     */
    @Override
    public SysDictType selectDictTypeByType(String dictType)
    {
        LambdaQueryWrapper<SysDictType> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(SysDictType::getDictType, dictType);
        return dictTypeMapper.selectOne(queryWrapper);
    }

    /**
     * 批量删除字典类型信息
     * 
     * @param dictIds 需要删除的字典ID
     */
    @Override
    public void deleteDictTypeByIds(Long[] dictIds)
    {
        for (Long dictId : dictIds)
        {
            SysDictType dictType = selectDictTypeById(dictId);
            LambdaQueryWrapper<SysDictData> wrapper = new LambdaQueryWrapper<>();
            wrapper.eq(SysDictData::getDictType, dictType.getDictType());
            if (dictDataMapper.selectCount(wrapper) > 0)
            {
                throw new ServiceException(String.format("%1$s已分配,不能删除", dictType.getDictName()));
            }
            dictTypeMapper.deleteById(dictId);
            DictUtils.removeDictCache(dictType.getDictType());
        }
    }

    /**
     * 加载字典缓存数据
     */
    @Override
    public void loadingDictCache()
    {
        List<SysDictData> dictDataList = this.getSysDictData(new SysDictType());

        Map<String, List<SysDictData>> dictDataMap = dictDataList.stream().collect(Collectors.groupingBy(SysDictData::getDictType));
        for (Map.Entry<String, List<SysDictData>> entry : dictDataMap.entrySet())
        {
            DictUtils.setDictCache(entry.getKey(), entry.getValue().stream().sorted(Comparator.comparing(SysDictData::getDictSort)).collect(Collectors.toList()));
        }
    }

    /**
     * 清空字典缓存数据
     */
    @Override
    public void clearDictCache()
    {
        DictUtils.clearDictCache();
    }

    /**
     * 重置字典缓存数据
     */
    @Override
    public void resetDictCache()
    {
        clearDictCache();
        loadingDictCache();
    }

    /**
     * 新增保存字典类型信息
     * 
     * @param dict 字典类型信息
     * @return 结果
     */
    @Override
    public int insertDictType(SysDictType dict)
    {
        int row = dictTypeMapper.insert(dict);
        if (row > 0)
        {
            DictUtils.setDictCache(dict.getDictType(), null);
        }
        return row;
    }

    /**
     * 修改保存字典类型信息
     * 
     * @param dict 字典类型信息
     * @return 结果
     */
    @Override
    @Transactional
    public int updateDictType(SysDictType dict)
    {
        SysDictType oldDict = dictTypeMapper.selectById(dict.getDictId());
        //同步更新字典类型
        LambdaUpdateWrapper<SysDictData> updateWrapper = new LambdaUpdateWrapper<>();
        updateWrapper.set(SysDictData::getDictType, dict.getDictType());
        updateWrapper.eq(SysDictData::getDictType, oldDict.getDictType());
        dictDataMapper.update(null, updateWrapper);

        //更新字典信息
        int row = dictTypeMapper.updateById(dict);
        if (row > 0)
        {
            List<SysDictData> dictDataList = this.getSysDictData(dict);
            DictUtils.setDictCache(dict.getDictType(), dictDataList);
        }
        return row;
    }

    /**
     * 根据字典类型查询字典数据
     *
     * @param dict dict
     * @return List<SysDictData>
     */
    private List<SysDictData> getSysDictData(SysDictType dict) {
        LambdaQueryWrapper<SysDictData> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(SysDictData::getStatus, '0');
        queryWrapper.eq(StringUtils.isNotNull(dict.getDictType()), SysDictData::getDictType, dict.getDictType());
        queryWrapper.orderByAsc(SysDictData::getDictSort);
        return dictDataMapper.selectList(queryWrapper);
    }

    /**
     * 校验字典类型称是否唯一
     *
     * @param dict 字典类型
     * @return 结果
     */
    @Override
    public String checkDictTypeUnique(SysDictType dict) {
        long dictId = StringUtils.isNull(dict.getDictId()) ? -1L : dict.getDictId();

        LambdaQueryWrapper<SysDictType> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(SysDictType::getDictType, dict.getDictType());
        SysDictType dictType = dictTypeMapper.selectOne(queryWrapper);

        if (StringUtils.isNotNull(dictType) && dictType.getDictId() != dictId) {
            return UserConstants.NOT_UNIQUE;
        }
        return UserConstants.UNIQUE;
    }
}
